JARED LOUGHNER IDENTIFIED AS GUNMAN IN AZ SHOOTING

FILE - This Jan. 8, 2011 file photo provided by the Pima County Sheriff's Office shows Jared Loughner, who carried out the shooting rampage in Tucson that killed six people and wounded former U.S. Rep. Gabrielle Giffords and 12 others. Authorities are set to release more than 300 photos on Tuesday May 21, 2013, that investigators took in the aftermath of the Tucson shooting rampage . (AP Photo/Pima County Sheriff's Department via The Arizona Republic, File)